Hot-rolled steel bar flaw detection device

Abstract

The utility model provides a hot-rolled steel bar flaw detection device which comprises a supporting frame, fixing pieces used for fixing a hot-rolled steel bar are arranged on the top faces of the two sides of the supporting frame in the length direction of the supporting frame correspondingly, sliding rails are arranged on the two sides of the supporting frame in the width direction of the supporting frame correspondingly, and the two sliding rails are distributed in the length direction of the supporting frame; a rotating shaft is rotationally arranged at the bottom of the sliding base, one end of the rotating shaft is connected with an output shaft of a driving motor arranged on the sliding base, and first pulleys corresponding to the two sliding rails one to one are arranged at the two ends of the rotating shaft respectively; and the flaw detection body is arranged on the upper surface of the sliding base, and a detection channel allowing the hot-rolled steel bars to penetrate through is formed in the flaw detection body. Whether the hot-rolled steel bars are qualified or not is judged by judging whether defects (cracks, sand holes, air holes, white points, inclusions and the like) exist in the hot-rolled steel bars or not, judging whether welding seams are qualified or not and judging whether dark damage exists or not, tedious manual operation is avoided, the flaw detection time is shortened, and therefore the flaw detection efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of hot-rolled steel bars, and in particular to a hot-rolled steel bar flaw detection device. Background Art

[0002] Hot-rolled rebar is a finished product that has been hot-rolled and naturally cooled. It is made from low-carbon steel and ordinary alloy steel pressed at high temperatures. It is primarily used for reinforcement in reinforced concrete and prestressed concrete structures and is one of the most widely used steel types in civil construction. Hot-rolled rebar must possess a certain strength, namely yield point and tensile strength, which is a key factor in structural design. Furthermore, to meet requirements such as structural deformation, seismic energy absorption, and processability, hot-rolled rebar must exhibit good plasticity, toughness, weldability, and excellent bond strength between the rebar and concrete. To ensure production quality, hot-rolled rebar is routinely inspected using flaw detection equipment before shipment.

[0003] Most of the existing hot-rolled steel bar flaw detection devices are portable flaw detectors. Specifically, a worker moves a handheld flaw detector along the length of the hot-rolled steel bar to determine whether there are defects (cracks, sand holes, pores, white spots, inclusions, etc.) inside the hot-rolled steel bar, whether the weld is qualified, and whether there are hidden flaws, thereby determining whether the hot-rolled steel bar is qualified. However, due to the long length of the hot-rolled steel bar, it is time-consuming and laborious for the worker to hold the flaw detector for a long time, and the operation time is long, resulting in low flaw detection efficiency of the hot-rolled steel bar. Utility Model Content

[0004] The present application provides a hot-rolled steel bar flaw detection device to solve the technical problems described in the above background.

[0005] In order to solve the above technical problems, this application adopts the following technical solutions:

[0006] The present application provides a hot-rolled steel bar flaw detection device, comprising:

[0007] A support frame, wherein the top surfaces of the support frame on both sides along the length direction are respectively provided with fixing parts for fixing the hot-rolled steel bars, and the two sides along the width direction are respectively provided with slide rails, and the two slide rails are distributed along the length direction of the support frame;

[0008] A sliding base, wherein a rotating shaft is rotatably provided at the bottom of the sliding base, one end of the rotating shaft is connected to the output shaft of the driving motor provided on the sliding base, and both ends of the rotating shaft are respectively provided with first pulleys corresponding to the two slide rails;

[0009] The flaw detection body is arranged on the upper surface of the sliding base and is provided with a detection channel for the hot-rolled steel bars to pass through.

[0010] Optionally, the support frame is provided with a first limiting rod located above the fixing member, and the first limiting rod is parallel to the slide rail;

[0011] A second limiting rod is vertically provided on the top of the flaw detection body, and a limiting ring is provided on the top end of the second limiting rod. The limiting ring is sleeved on the first limiting rod and can move along the length direction of the first limiting rod.

[0012] Optionally, the bottom end of the second limiting rod is hinged to the top of the flaw detection body and its length is retractable.

[0013] Optionally, a second pulley is provided at the front end of the flaw detection body, and the second pulley is located above the hot-rolled steel bar and can slide along the length direction of the hot-rolled steel bar.

[0014] Optionally, it further comprises a purge assembly for cleaning the outer peripheral wall of the hot-rolled steel bar;

[0015] The purge assembly includes a fixed rod, an annular air pipe and an air supply pipe;

[0016] The fixing rod is vertically arranged on the upper surface of the sliding base, the outer wall of the annular air pipe is connected to the bottom end of the fixing rod, and a plurality of air nozzles are connected to the annular air pipe at equal intervals, and each of the air nozzles is away from one end of the annular air pipe toward the hot-rolled steel bar, one end of the air supply pipe is connected to the annular air pipe, and the other end of the air supply pipe is connected to the air outlet of the air pump arranged on the sliding base.

[0017] Optionally, a handle is provided on the flaw detection body.

[0018] Optionally, the flaw detection body is detachably connected to the sliding base via a fastener;

[0019] The fasteners include fastening bolts and nuts;

[0020] A first threaded through hole is provided on the base of the flaw detection body, a second threaded through hole corresponding to the first threaded through hole is provided on the sliding base, the screw end of the fastening bolt passes through the first threaded through hole and the second threaded through hole in sequence, and the nut is sleeved on the fastening bolt.

[0021] The hot-rolled steel bar flaw detection device provided by the present application places the two ends of the hot-rolled steel bar on two corresponding fixing parts respectively, then lifts one end of the hot-rolled steel bar from the fixing part so that it passes through the detection channel on the flaw detection body, turns on the driving motor and the flaw detection body, and drives the first pulley on the sliding base to slide along the length direction of the slide rail by the driving motor. In the process of the sliding base moving relative to the slide rail, the flaw detection body on it moves synchronously with the sliding base, so that the detection channel on the flaw detection body continuously moves along the length direction of the hot-rolled steel bar and flaw detection is performed on various positions of the hot-rolled steel bar, thereby obtaining the flaw detection conditions at various positions of the hot-rolled steel bar, thereby judging whether there are defects (cracks, sand holes, pores, white spots, inclusions, etc.) inside the hot-rolled steel bar, whether the weld is qualified, whether there are hidden scratches, and then judging whether the hot-rolled steel bar is qualified or not. The above-mentioned flaw detection process avoids the tedious manual operation and shortens the flaw detection time, thereby improving the flaw detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 A schematic structural diagram of a hot-rolled steel bar flaw detection device provided in one embodiment of the present application;

[0024] Figure 2 A schematic structural diagram of a hot-rolled steel bar flaw detection device provided in another embodiment of the present application;

[0025] Figure 3 A schematic structural diagram of a hot-rolled steel bar flaw detection device provided in another embodiment of the present application;

[0026] Figure 4 A schematic structural diagram of a hot-rolled steel bar flaw detection device provided in another embodiment of the present application;

[0027] Figure 5 A schematic structural diagram of a hot-rolled steel bar flaw detection device provided in another embodiment of the present application;

[0028] Figure 6 Provided for an embodiment of this application Figure 5 Schematic diagram of a local enlarged structure;

[0029] Figure 7 A schematic structural diagram of a sliding base provided in an embodiment of the present application, in which a rotating shaft and a first pulley are provided on the rotating shaft.

[0030] In the figure: 100, support frame; 101, fixing part; 102, slide rail; 103, first limiting rod; 200, hot-rolled steel bar; 300, sliding base; 301, rotating shaft; 3011, first pulley; 302, driving motor; 303, air pump; 400, flaw detection body; 401, detection channel; 402, second limiting rod; 4021, limiting ring; 403, second pulley; 404, handle; 500, purge assembly; 501, fixing rod; 502, annular air pipe; 5021, air nozzle; 503, air supply pipe; 600, fastener; 601, fastening bolt; 602, nut. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application are clearly and completely described below. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts also fall within the scope of protection of this application.

[0032] refer to Figures 1 to 7 The present application provides a hot-rolled steel bar flaw detection device, comprising:

[0033] The support frame 100 has fixing members 101 disposed on its top surfaces along both sides of its length for securing the hot-rolled steel bars 200. Furthermore, slide rails 102 are disposed on both sides of its width, both slide rails 102 being distributed along the length of the support frame 100. The purpose of providing the fixing members is to ensure the stability of the position of the hot-rolled steel bars 200 during the flaw detection process, thereby ensuring the accuracy of the flaw detection results for the hot-rolled steel bars 200. Furthermore, the height of the support frame 100 can be adjusted based on the actual needs of the flaw detection process and is therefore not specifically limited in this application.

[0034] The sliding base 300 has a rotating shaft 301 rotatably provided at the bottom of the sliding base 300, one end of the rotating shaft 301 is connected to the output shaft of the driving motor 302 provided on the sliding base 300, and the two ends of the rotating shaft 301 are respectively provided with a first pulley 3011 corresponding to the two slide rails 102; wherein, in order to ensure the stability of the sliding base 300 during the movement process, there are two rotating shafts 301, and the two rotating shafts 301 are parallel to each other and arranged at intervals, and pulleys are respectively provided on the two rotating shafts 301, and the two pulleys are connected by a belt, that is, when the driving motor 302 is turned on, one of the rotating shafts 301 is driven by the driving motor 302 to drive the first pulley 3011 thereon to slide, and the first pulley 3011 on the other rotating shaft 301 connected to one of the rotating shafts 301 through the pulley and belt also slides along the length direction of the slide rail 102, thereby ensuring the stability of the sliding base 300 during the movement process.

[0035] The flaw detection body 400 is disposed on the upper surface of the sliding base 300 and defines a detection channel 401 for the hot-rolled rebar 200 to pass through. As the detection channel 401 on the flaw detection body 400 moves along the length of the hot-rolled rebar 200, the flaw detection body 400 can obtain flaw detection information at various locations on the hot-rolled rebar 200, thereby achieving comprehensive flaw detection of the hot-rolled rebar 200 and ensuring the accuracy of the test results.

[0036] The hot-rolled steel bar flaw detection device provided by the present application is configured such that the two ends of the hot-rolled steel bar 200 are respectively placed on the two corresponding fixing members 101, and then one end of the hot-rolled steel bar 200 is lifted from the fixing member 101 so that it passes through the detection channel 401 on the flaw detection body 400, and the driving motor 302 and the flaw detection body 400 are turned on. The driving motor 302 drives the first pulley 3011 on the sliding base 300 to slide along the length direction of the slide rail 102, and the flaw detection body 400 on it follows the sliding base 300 in the process of moving relative to the slide rail 102. The movable base 300 moves synchronously, so that the detection channel 401 on the flaw detection body 400 continuously moves along the length direction of the hot-rolled steel bar 200 and performs flaw detection on various positions of the hot-rolled steel bar 200, thereby obtaining the flaw detection conditions at various positions of the hot-rolled steel bar 200, thereby judging whether there are defects (cracks, sand holes, pores, white spots, inclusions, etc.) inside the hot-rolled steel bar 200, whether the weld is qualified, whether there are hidden scratches, and then judging whether the hot-rolled steel bar 200 is qualified or not. The above-mentioned flaw detection process avoids the tedious manual operation and shortens the flaw detection time, thereby improving the flaw detection efficiency.

[0037] It is particularly noted here that, during the process of detecting both ends of the hot-rolled steel bar 200 , the hot-rolled steel bar 200 may be moved so that the flaw detection body 400 can detect the ends of the hot-rolled steel bar 200 .

[0038] In some embodiments, reference Figures 1 to 7 The support frame 100 in the present application is provided with a first limiting rod 103 located above the fixing member 101, and the first limiting rod 103 is parallel to the slide rail 102; wherein, the length of the first limiting rod 103 matches the length of the slide rail 102.

[0039] In addition, a second limiting rod 402 is vertically disposed on the top of the flaw detection body 400. A limiting ring 4021 is disposed at the top of the second limiting rod 402. The limiting ring 4021 is sleeved on the first limiting rod 103 and can move along the length of the first limiting rod 103. The limiting ring 4021 can be made of a flexible material and have a break. The break and the flexibility of the limiting ring 4021 allow the limiting ring 4021 to be split and sleeved on the first limiting rod 103, facilitating installation.

[0040] In the above embodiment, the limiting ring 4021 is sleeved on the first limiting rod 103. When the flaw detection body 400 moves with the sliding base 300, the limiting ring 4021 will move along the length direction of the first limiting rod 103, thereby realizing the limitation of the top of the flaw detection body 400, further ensuring the stability of the flaw detection body 400 during the flaw detection process of the hot-rolled steel bar 200, thereby ensuring the accuracy of the flaw detection results of the flaw detection body 400 on the hot-rolled steel bar 200.

[0041] In some embodiments, the bottom end of the second limiting rod 402 in the present application is hinged to the top of the flaw detection body 400 and its length is retractable.

[0042] In the above embodiment, the bottom end of the second limit rod 402 is hinged to the top of the flaw detection body 400. Before flaw detection of the hot-rolled steel bar 200 or after the flaw detection process is completed, the second limit rod 402 can be lowered so that the second limit rod 402 is parallel to the flaw detection body 400 rather than perpendicular to it, which makes it convenient to store the second limit rod 402. The second limit rod 402 with retractable length can adjust the length of the second limit rod 402 according to the length of the top surface of the flaw detection body 400 from the first limit rod 103 and make the limit ring 4021 at the top of the second limit rod 402 be mounted on the first limit rod 103, so that the hot-rolled steel bar flaw detection device in this application can be more widely applicable, thereby improving the wide applicability of the hot-rolled steel bar flaw detection device.

[0043] In some embodiments, reference Figure 5 and Figure 6The front end of the flaw detection body 400 in this application is provided with a second pulley 403, which is located above the hot-rolled steel bar 200 and can slide along the length direction of the hot-rolled steel bar 200. Among them, the second pulley 403 is provided with a chute matching the hot-rolled steel bar 200.

[0044] In the above embodiment, when the flaw detection body 400 follows the sliding base 300 to move along the length direction of the hot-rolled steel bar 200, the second pulley 403 arranged at the front end of the flaw detection body 400 can also move along the length direction of the hot-rolled steel bar 200. In this way, the flaw detection body 400 can always move along the length direction of the hot-rolled steel bar 200 throughout the entire movement process, thereby ensuring the stability of the flaw detection process.

[0045] In some embodiments, reference Figure 1 and Figure 6 The hot-rolled rebar flaw detection device of this application also includes a purge assembly 500 for cleaning the outer peripheral wall of the hot-rolled rebar 200. Dust and other impurities may adhere to the outer surface of the hot-rolled rebar 200, and these impurities may affect the accuracy of the detection results of the flaw detection body 400. Therefore, the purge assembly 500 cleans the outer surface of the hot-rolled rebar 200 by blowing away impurities adhering to the outer surface of the hot-rolled rebar 200, thereby ensuring the accuracy of the flaw detection results and preventing impurities from abrading the detection channel 401 of the flaw detection body 400, thereby ensuring the service life of the flaw detection body 400 and the accuracy of the detection results.

[0046] In addition, the purge assembly 500 includes a fixed rod 501, an annular air tube 502, and an air supply pipe 503. Specifically, the fixed rod 501 is vertically arranged on the upper surface of the sliding base 300. The outer wall of the annular air tube 502 is connected to the bottom end of the fixed rod 501. The annular air tube 502 is connected to a plurality of air nozzles 5021 at equal intervals. Each air nozzle 5021 faces the hot-rolled steel bar 200 at one end away from the annular air tube 502. One end of the air supply pipe 503 is connected to the annular air tube 502, and the other end of the air supply pipe 503 is connected to the air outlet of the air pump 303 arranged on the sliding base 300. The air pump 303 can be an air pump, which provides the air force for the purge assembly 500 to clean the surface of the hot-rolled steel bar 200. The specifications and models of the air pump 303 can be selected according to actual needs and are not specifically limited in this application.

[0047] In the above embodiment, the air pump 303 is turned on, allowing air to be sprayed onto the outer wall of the hot-rolled rebar 200 through the air inlet and outlet of the air pump 303, the air supply pipe 503, the annular air pipe 502, and the multiple air nozzles 5021. This cleans impurities adhering to the outer surface of the hot-rolled rebar 200, ensuring the accuracy of the flaw detection results. The provision of multiple air nozzles 5021 connected to the annular air pipe 502 improves the efficiency of cleaning impurities adhering to the outer surface of the hot-rolled rebar 200.

[0048] In some embodiments, reference Figures 1 to 7 In the present application, the flaw detection body 400 is provided with a handle 404. The setting of the handle 404 is convenient for the staff to grasp the flaw detection body 400 during the process of fixing the position of the flaw detection body 400, making the flaw detection process more convenient.

[0049] In some embodiments, Figure 3 and Figure 7 The flaw detection body 400 in this application is detachably connected to the sliding base 300 through a fastener 600; wherein, the flaw detection body 400 is fixed to the sliding base 300 by the fastener 600, so that the flaw detection body 400 has high stability during the process of synchronous movement with the sliding base, thereby ensuring the accuracy of the flaw detection results of the hot-rolled steel bar 200 by the flaw detection body 400.

[0050] In addition, the fastener 600 includes a fastening bolt 601 and a nut 602. Specifically, a first threaded through hole is defined on the base of the flaw detection body 400, and a second threaded through hole corresponding to the first threaded through hole is defined on the sliding base 300. The screw end of the fastening bolt 601 sequentially passes through the first threaded through hole and the second threaded through hole, and the nut 602 is sleeved on the fastening bolt. There can be multiple first threaded through holes, and there can also be multiple second threaded through holes. The multiple second threaded through holes correspond one-to-one with the multiple first threaded through holes, and each first threaded through hole and each second threaded through hole corresponds to a fastening bolt 601 and a nut 602. The arrangement of multiple first threaded through holes, multiple first threaded through holes, multiple fastening bolts 601, and multiple nuts 602 ensures the stability of the connection between the flaw detection body 400 and the sliding base 300.

[0051] In the above embodiment, the screw end of the fastening bolt 601 passes through the first threaded through hole and the second threaded through hole in sequence, and then the nut 602 is screwed onto the fastening bolt 601 until the nut 602 abuts against the lower surface of the sliding base 300, thereby realizing the connection between the flaw detection body 400 and the sliding base 300. The fastening bolt 601 and the nut 602 that fix the flaw detection body 400 and the sliding base 300 together are easy to disassemble, making the installation and disassembly process of the flaw detection body 400 more convenient.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A hot-rolled steel bar flaw detection device, characterized in that: include: A support frame (100), wherein the top surfaces of the support frame (100) on both sides along the length direction thereof are respectively provided with fixing members (101) for fixing the hot-rolled steel bars (200), and the two sides along the width direction thereof are respectively provided with slide rails (102), and the two slide rails (102) are distributed along the length direction of the support frame (100); A sliding base (300), wherein a rotating shaft (301) is rotatably provided at the bottom of the sliding base (300), one end of the rotating shaft (301) is connected to the output shaft of a driving motor (302) provided on the sliding base (300), and both ends of the rotating shaft (301) are respectively provided with first pulleys (3011) corresponding to the two slide rails (102); A flaw detection body (400) is provided on the upper surface of the sliding base (300) and is provided with a detection channel (401) for the hot-rolled steel bar (200) to pass through.

2. The hot-rolled steel bar flaw detection device according to claim 1, characterized in that: The support frame (100) is provided with a first limiting rod (103) located above the fixing member (101), and the first limiting rod (103) is parallel to the slide rail (102); A second limiting rod (402) is vertically arranged on the top of the flaw detection body (400), and a limiting ring (4021) is arranged on the top of the second limiting rod (402). The limiting ring (4021) is sleeved on the first limiting rod (103) and can move along the length direction of the first limiting rod (103).

3. The hot-rolled steel bar flaw detection device according to claim 2, characterized in that: The bottom end of the second limiting rod (402) is hinged to the top of the flaw detection body (400) and its length is retractable.

4. The hot-rolled steel bar flaw detection device according to claim 1, characterized in that: A second pulley (403) is provided at the front end of the flaw detection body (400), and the second pulley (403) is located above the hot-rolled steel bar (200) and can slide along the length direction of the hot-rolled steel bar (200).

5. The hot-rolled steel bar flaw detection device according to claim 1, characterized in that: It also includes a purge assembly (500) for cleaning the outer peripheral wall of the hot-rolled steel bar (200); The purge assembly (500) includes a fixing rod (501), an annular air pipe (502) and an air supply pipe (503); The fixing rod (501) is vertically arranged on the upper surface of the sliding base (300), the outer wall of the annular air pipe (502) is connected to the bottom end of the fixing rod (501), and a plurality of air nozzles (5021) are connected at equal intervals on the annular air pipe (502), and each of the air nozzles (5021) is away from one end of the annular air pipe (502) and faces the hot-rolled steel bar (200), one end of the air supply pipe (503) is connected to the annular air pipe (502), and the other end of the air supply pipe (503) is connected to the air outlet of the air pump (303) arranged on the sliding base (300).

6. The hot-rolled steel bar flaw detection device according to any one of claims 1 to 5, characterized in that: The flaw detection body (400) is provided with a handle (404).

7. The hot-rolled steel bar flaw detection device according to any one of claims 1 to 5, characterized in that: The flaw detection body (400) is detachably connected to the sliding base (300) via a fastener (600); The fastener (600) includes a fastening bolt (601) and a nut (602); A first threaded through hole is provided on the base of the flaw detection body (400), a second threaded through hole corresponding to the first threaded through hole is provided on the sliding base (300), the screw end of the fastening bolt (601) passes through the first threaded through hole and the second threaded through hole in sequence, and the nut (602) is sleeved on the fastening bolt (601).

Images